Question

我正在使用Android SpeechRecognizer，并希望限制Google返回的转录结果数量。

从文档中，RecognizerIntent中的EXTRA_MAX_RESULTS看起来就像我想要的那样：

要返回的最大结果数量的可选限制。如果省略，识别器将选择返回多少结果。必须是整数。

但是，将此额外添加到意图中无效。 Bundle中的onResults始终有五个转录，无论我指定的是什么号码。

public class MainActivity extends AppCompatActivity implements RecognitionListener {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final SpeechRecognizer recognizer = SpeechRecognizer.createSpeechRecognizer(getApplicationContext());
    recognizer.setRecognitionListener(this);

    final Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    intent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 2); //should limit to 2 results

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        recognizer.startListening(intent);
      }
    });
  }

  @Override public void onResults(Bundle results) {
    ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
    if (matches != null && !matches.isEmpty()) {
      Log.d("All matches", "number matches: " + matches.size()); //always 5
    }
  }
...

}

限制Google返回的转录数量的正确方法是什么？

Android：`RecognizerIntent.EXTRA_MAX_RESULTS`不限制结果数量

0 个答案: